<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="content-type" content="text/html; charset=utf-8" />
  <title>Example</title>

</head>
<body>
<a href="http://www.baidu.com/" class="popup">Example</a>
</body>
	<script type="text/javascript" src="function.js"></script>
</html>
